Answers

Add 30/72 and 72/70

1^st number: 30/72, 2^nd number: 1 2/70

30/72 + 72/70 is 607/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 70 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 72 × 35 = 2520,
   30/72 = 30 × 35/72 × 35 = 1050/2520
3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
   72/70 = 72 × 36/70 × 36 = 2592/2520
4. Add the two like fractions:
   1050/2520 + 2592/2520 = 1050 + 2592/2520 = 3642/2520
5. 3642/2520 simplified gives 607/420
6. So, 30/72 + 72/70 = 607/420
   In mixed form: 1187/420

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